water power control valve, its body has on its face opposed to the valve seat a sealing disc which comes into contact with the valve seat when the valve is closed.

Regulator is self-control system actuators, its application quality direct responsed in system control quality. As process control terminal components, people have newer understanding to its importance, compared with the past.

Intelligent regulator is the regulator contains microprocessor, can realize the intellectualized control function. The regulator intelligence usually adopts the following several forms

the introduction of control valve

In this configuration the building air supply feeds a factory installed temperature controller which operates the steam control valve.

air flow control valves have an adjustable metering needle and a check valve to control the flow in only one diretion.

control valve have many types.1.Angle valves 2.Angle-seat piston valves 3.Globe valves 4.Diaphragm valves 5.Rotary valves 6.Sliding cylinder valves 7.Air-operated valves

A valve signature should always be captured for a new control valve. This procedure performs a number of test and measures control air pressure, valve position and set point.